Replacement Grill Cloth for Sonus Fabers

When could I find acoustic fabric for replacing my Sonus Fabers Electa Amators. I am looking for something close to the original and not something that looks different.

The fabric on the Electa's are very fine and of high thread count. Any suggestions would be appreciated.
Go to your local fabric outlet and look for "Double Knit" fabric they are sure to have several black ones for you to choose from.

Regular grille cloth is available form Madisound and from Parts Express

Best of luck